Serious rainstorms have left 16 people dead and 19 missing since Sunday in China, said the Ministry of Civil Affairs in Beijing on Wednesday.

The disasters have affected 1.67 million people in 15 provincial divisions in China as of 9 am on Wednesday, according to a ministry statement.

Heavy rainfall accompanied by thunderstorms and hail has triggered serious floods and landslides in these areas, the statement said.

The central government has sent out expert teams to supervise rescue and relief work in the worst-hit provinces such as southwest China's Sichuan while relief material has been rushed to the affected areas.